Catalysis of impurities coalescence by quantized vortices in superfluid helium with nanofilaments formation
The dramatic effect of quantized vortices in superfluid helium on the rate of coalescence of suspended impurities has been predicted; such catalytic process should result in formation of fiber-like structures having primarily nanothickness. That should be valid for any impurity and it may be used as...
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| Veröffentlicht in: | Физика низких температур |
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| Datum: | 2009 |
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| Sprache: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2009
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Catalysis of impurities coalescence by quantized vortices in superfluid helium with nanofilaments formation / E.B. Gordon, Y. Okuda // Физика низких температур. — 2009. — Т. 35, № 3. — С. 278-283. — Бібліогр.: 14 назв. — англ. |
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Gordon, E.B. Okuda, Y. 2017-05-18T17:38:19Z 2017-05-18T17:38:19Z 2009 Catalysis of impurities coalescence by quantized vortices in superfluid helium with nanofilaments formation / E.B. Gordon, Y. Okuda // Физика низких температур. — 2009. — Т. 35, № 3. — С. 278-283. — Бібліогр.: 14 назв. — англ. PACS: 67.25.dk, 61.46.Km, 67.63.Cd https://nasplib.isofts.kiev.ua/handle/123456789/116993 The dramatic effect of quantized vortices in superfluid helium on the rate of coalescence of suspended impurities has been predicted; such catalytic process should result in formation of fiber-like structures having primarily nanothickness. That should be valid for any impurity and it may be used as a base for the universal method of nanowires and nanotubes producing. The experiments on molecular hydrogen imbedding into liquid helium supported these conclusions. They showed that: (i) in normal liquid He the coalescence led to formatting spherical microparticles carried by turbulent motion of a liquid; (ii) in the superfluid only very long filaments were observed, they behaved as quantized vortices should do. These filaments are fiber-like hydrogen crystals and they survived liquid helium transition to normal state. The promises for using this phenomenon in basic and applied sciences have been outlined. This work was supported in part by Russian Foundation for Basic Researches grant #07-03-00393. The authors are grateful to A.V. Karabulin for technical assistance and to Profs. I. Silvera (Harvard University), A. Weis (Fribourg University), and Y. Kagan (Kurchatov Centre) for valuable discussions. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Квантовые жидкости и квантовые кpисталлы Catalysis of impurities coalescence by quantized vortices in superfluid helium with nanofilaments formation Article published earlier |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| title |
Catalysis of impurities coalescence by quantized vortices in superfluid helium with nanofilaments formation |
| spellingShingle |
Catalysis of impurities coalescence by quantized vortices in superfluid helium with nanofilaments formation Gordon, E.B. Okuda, Y. Квантовые жидкости и квантовые кpисталлы |
| title_short |
Catalysis of impurities coalescence by quantized vortices in superfluid helium with nanofilaments formation |
| title_full |
Catalysis of impurities coalescence by quantized vortices in superfluid helium with nanofilaments formation |
| title_fullStr |
Catalysis of impurities coalescence by quantized vortices in superfluid helium with nanofilaments formation |
| title_full_unstemmed |
Catalysis of impurities coalescence by quantized vortices in superfluid helium with nanofilaments formation |
| title_sort |
catalysis of impurities coalescence by quantized vortices in superfluid helium with nanofilaments formation |
| author |
Gordon, E.B. Okuda, Y. |
| author_facet |
Gordon, E.B. Okuda, Y. |
| topic |
Квантовые жидкости и квантовые кpисталлы |
| topic_facet |
Квантовые жидкости и квантовые кpисталлы |
| publishDate |
2009 |
| language |
English |
| container_title |
Физика низких температур |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| format |
Article |
| description |
The dramatic effect of quantized vortices in superfluid helium on the rate of coalescence of suspended impurities has been predicted; such catalytic process should result in formation of fiber-like structures having primarily nanothickness. That should be valid for any impurity and it may be used as a base for the universal method of nanowires and nanotubes producing. The experiments on molecular hydrogen imbedding into liquid helium supported these conclusions. They showed that: (i) in normal liquid He the coalescence led to formatting spherical microparticles carried by turbulent motion of a liquid; (ii) in the superfluid only very long filaments were observed, they behaved as quantized vortices should do. These filaments are fiber-like hydrogen crystals and they survived liquid helium transition to normal state. The promises for using this phenomenon in basic and applied sciences have been outlined.
|
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/116993 |
| citation_txt |
Catalysis of impurities coalescence by quantized vortices in superfluid helium with nanofilaments formation / E.B. Gordon, Y. Okuda // Физика низких температур. — 2009. — Т. 35, № 3. — С. 278-283. — Бібліогр.: 14 назв. — англ. |
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AT gordoneb catalysisofimpuritiescoalescencebyquantizedvorticesinsuperfluidheliumwithnanofilamentsformation AT okuday catalysisofimpuritiescoalescencebyquantizedvorticesinsuperfluidheliumwithnanofilamentsformation |
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2025-12-01T19:41:39Z |
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2025-12-01T19:41:39Z |
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